Super Systems AC20 User Manual

Page 85

signalled on lower display as “

”

On UNDER-RANGE on remote setpoint measurement is
signalled on lower display as “- ”
(indication only when required . See “DISPLAY FUNCTION”)
The sensor leads break can be detected when the range
selected has a zero elevation (4-20 mA or 1-5 V or 2-10 V)
and signalled as “OPEn”.
The sensor leads break acts as an UNDER-RANGE condition.
For functioning during out of range see also “A.I.Añ – CnF.1”

ERROR MESSAGES

ERROR MESSAGES
At instrument start up in operative mode all the parameters are
checked.

If an error is detected, the display will show the parameter
group and the mnemonic code of the group with the wrong
parameter setting while “Err” is shown on the central display.
The device reset automatically after a time out of 6 s (20 s if
serial link is enabled)

Following the normal procedure reach the group with the wrong
parameter setting and correct it (during run time mode, every
keystroke restarts the time out. During modify configuration
parameters mode, the time out is disabled).
When the error is corrected push “MENU” until the device resets
(if in run time mode) or end the modify configuration parameters
mode following the normal procedure.
Repeat the above described procedure if another error is shown.

Error list for control action setting:
E.120

Error on control parameter calculated by SMART
when the control action type has been changed in
the configuration mode.

E.130

Error during the TUNE mode. The algorithm was not
able to correctly calculate the control action
parameters.